Truck-bolster.



.APPLIOATION IEILBD JAN. 4. 1906.

5 SHEETS-SHEET 1.

Z! In ventbr;

Attjvs. I

PATENTED MAR. 27, 1906.

JJM, GOODWIN.

TRUCK BOLSTER. /APPLIOATION FILED JAN. 4. 1906.

5 SHEETS-SHEET 2.

J. M. GOODWIN.

TRUCK BOLSTBR. Apruouron FILED JAN. 4. 1906.

a 2 Ingentor! M 15/ PATENTED MAR. 27, 1906.

5 SHEETS-SHEET 4.

PATENTED MAR; 27', 1906.

J. M. GOODWIN.

TRUCK BOLSTER. APrLmuIoN FILED JAN.4.1906.

' sauna-sum 5.

Attest UNITED STATES PATENT OFFICE.

JOHN M. GOODWIN,,OF MOUNT VERNON, NEW YORK.

'- TRUCK-EOLSTER.

To all whom it may concern;

Be it known that I, JOHN M; GOODWIN, a citizen of the United States, anda resident of the city of Mount Vernon, in the county of Westchester andState of New York, have invented certain new and useful Improvementstion which will properly transmit the Weight of the vehicle' to thevehicle-wheels without distortion or; appreciable flexure; and theinvention involves the several features of construction and arrangementof parts, as will be hereinafter fully. described, and more particularlypointed out in the appended claims- Referring to the drawin s, whichform a part of this specification, igure 1 is a top plan view of abolster embodying my inven tion. Fig. 2 is a side elevation thereof. 3is a vertical transverse section on line 3 3 of Fig. 1. Fig. 4 is ahorizontal section on line 4 4 of Fig. 2. Fig. 5 is a side elevation ofamodified form, and Fig. 6 a horizontal sec tion'online66of Fi .5.

Referring first to 'igs. 1 to 4, the bolster is formed of twolongitudinal side sections 1 and 2, which in this form of the inventionare formed of heavy sheet metal and rovided an bottom fastened togetherat a fixed and referably uniform distance from each other y means of atop bindinglate 3 and a bottom binding-plate 4, these inding-platesbeing shaped to conformto the-desired contour of the side sections andfirmly secured to the margins thereof by means of the angle-irons 5,above referred to At each end the bottom bindsuitably fashioned to restupon the ing-plate 4 is provided with a bearing-seat 6,

earin of the side or suspension frames of the truc and the topbinding-plate is also provided with a cap-plate 7 verticall above thesaid bearing-seat, these parts cing riveted or otherwise secured,respectively, to the top and bottom lates, as clear] shown in thedrawings.

Specification of Letters Patent.

/ Application filed January 4,1906. Serial No. 294,522. a

which surrounds the king-pin.

he hollow boxike beam thus Patented March 27, 1906.

. formed is reinforced at its central portion,

where the pressure of the load is intended to be applied to it, by meansof a filler-block or rigid part substantially filling the entire centralportion of its interior. or having bearing engagement with the wallsthereof. This filler-block is susceptible of different structuralformations; but, as shown in Figs. 1 to 4, it is comprised of twoprojections 8 and 9, respectively, formed on 01' secured to the oppositeinterior walls of said beam or bolster, the two projections togetherconstituting the said filler block or stiflening means. As shown inFigs. 1 to 4, the projection 8 is made selparately and secured to theside section 1, w 'le projection 9 is secured to the side section 2,andthe proximate faces of said projections are formed with complementarycontours, so thatthe two will interlock or rabbet together. The twoprojections are equal in height to the height of the side sections, sothat theyform post members between the top and bottom binding-plates,and the lateral bolts 10' pass through the side sections and both proections to secure them in lace and aidin holding the side sections rmlytogether; but" the projections may be provided with flanges, as shown at8, by means of whichfthey may also be secured to their side sections.One or the other of the projections may be recessed to receive theswivel or kin -pin of the truck; but, as shown herein,

the ingin aperture is provided by forming a vertica recess or ooveineach of said members, and the sai recesses when the projections are puttogether form a vertical cyindrical king-pin aperture. The topbinding-plate 3 is apertured at 11 in registry with the said king-pinaperture, and a bearingplate 12, provided with an annular dependmg-boss13, is secured to said top plate, with its said boss protruding throughthe aperture 11 and resting'against the bottom of an annular rabbet-slotin the upper end of the filler block. The bearin -plate 12 is 'firmlysecured to the top bin ing-plate and has its upper surface concaved tosupport the convex protuberance from the car body bolster, (Not shown.)For economizing metal and reducing weight the projections or members 8and 9 of the filler-block may be cored out, as indicated in Tieferrinnow to Figs. 5 and 6, the invention is exhi ited in a modified form inwhich the bolster is still hollow-that is to say,

formed of upright side sections 13, fastened together at a distance fromeach other top and bottom bindinglates; but the sald s1de sections inthis modi cation are respectlvely 5 cast or forged integrally with theinward or interior pro'ections 14 and 15, which constitute the'er-block. The said projections interlock by a rabbet connection, andtransverse bolts serve to hold them together. Porro tions of therojections are also cored out for the sake of 'ghtness, as indicated inFig. 5. In this form of truck the side sections are provided withvertical channels 16 at their ends, which serve as column-guides for theI 5 ends of the bolster in the side frames of the truck.

In both forms of the invention shown it- Will be observed that thepressure and strain exerted by the king-pin is borne in the first 2oinstance by the filler-block and by it transmitted to the .body ortionof the bolster and also ,that the said ffiler-block, in addition to itsfunction of a guide or socket for the kingpin, serves as a strut whichconverts the top and bottom binding-plates into the top and bottomchords of a truss for withstanding the vertical pressure upon thebearing-plate 12, thereby increasing the rigidity and resistance of thedevice to the superimposed load. -Having described my invention, what Iclaim, and desire to secure by United States Letters Patent, is-

1. A truck-bolster composed of side sections fastened together at adistance from 3 5 each other, in combination with means filling thespace between the central portions of sai side sections andprovided-with an aperture adapted to receive the king-pin.

' 2. A- truck-bolster comprised of longitudi- 4o nal sections fastenedto ether at a distance from each other and a fil ing-piece carried bythe central part of one of said sections, pro jectin into the spacebetween the same and provi ed with an aperture adapted to receive theking-pin.

' 3. A truck-bolster composed of longitudinal sections fastened togetherat a distance from each other so as to provide a space between them, incombinatlon with projections mounted on the interior faces ofsaidsections adapted to interlock with each other and providing an apertureto receive the king-pin. 4. A truck-bolster composed ofupr ght .sidesections, 'a topand a bottom indln plate secured respectively to saidsectlons, 1n

combination with projections mounted on the interior faces of saidsections adapted to interlock with each other and provide a'support forthe king-pin.

o 5, A truck bolster formed of side sections and binding-plates unitedtogether to form a box-like beam, projections on the opposite interiorsides of said beam adapted to interlock and provide a strutmember-between -6 5 the top and bottom binding-plates.

formed respectively ,rabbetsurfaces adapted to interlock and 6. Atruck-bolster formed of side sections and binding-plates united togetherto form a box-like beam, in combination with projections on the oppositeinterior sides of said beam of suitable vertical dimension to fill thedistance between the top and bottom walls thereof, and provided withmeans for receiving the king-pm.

7. A truck-bolster formed of upri ht side sections and binding-platessecuring t e same 7 5 together with a space between them, in combinationwith a filler-block secured in the space between said sections and abearin pate on the top binding-plate, the said bloc and bearing-platebeing perforated to receive the king-pin. Q

8. A truck-bolster formed of u sections and top and bottom bin i plates,

a filler-block secured in the space between said sections and recessedto receive the king- 8 5 pin, in combination with a bearing-plate on thetop binding-plate and an annular boss on said bearing-plate ada ted toproject through an opening in the top. inding-plate and have right sideengagement with sa1d filler-block. o

'9. A truck-bolster formed of upright side sections fastened togetherwith a space between them, in comblnation with rojections on theinterior faces of said si e sections with \complementary providedrespectively with vertical grooves ormin a king-pin aperture.

10. truck-bolster formed of longitudinal sections fastened together at adistance from each other and provided respectively with interiorprojections which interlock, said plrojections together forming anapertured 'ng-pin support, 1n combination with transverse bolts passingthrough said projections 10 5 from the exterior of the sections.

11. A truck-bolster formed of upright side sections and top and bottombinding-plates securin the same together, in combination with coumn-guides on the ends of said secno tions and interior interlockingprojections at their central portions forming a king-pin suport. p 12. Atruck-bolster formed of upright side sections and top and bottombinding-plates I15 securing the same together, in combination withinterior projections formed on the side sectionsand adapted to fill thespace between the top and bottom plates at their central portions, and abearing-seat on the top bind- 12o .lnglate adapted to recelve thepressure of the oad and transmit the same to said projections.

In testimony whereof I have signed my name to the specification in thepresence of two subscribing witnesses.

JOHN M. ooonwnv. Witnesses H. G. KrMBALL, G. A. TAYLOR.

